Health and fitness calculators

BMI, daily calories, calories burned and running pace, with the formulas doctors and coaches use.

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Put zet4u on your home screen

It opens like an app, and the calculators and games keep working with no internet – even on a plane. Free, no account.

  1. In Safari, tap Share (the square with the arrow pointing up). If you don’t see it, tap ⋯ first.
  2. Scroll down and choose Add to Home Screen.
  3. Tap Add. The zet4u icon appears next to your other apps.

In Chrome on iPhone, Share is at the top, next to the address bar.